FKIE_CVE-2026-13492

Vulnerability from fkie_nvd - Published: 2026-07-09 19:17 - Updated: 2026-07-10 15:43
Severity
8.8 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
The UsersWP plugin for WordPress is vulnerable to Arbitrary File Deletion in versions up to, and including, 1.2.65. This is due to insufficient validation of file-field values in the UsersWP_Validation::validate_fields() function (which falls through to sanitize_text_field() for fields of type 'file', leaving directory-traversal sequences intact) combined with the UsersWP_Forms::upload_file_remove() AJAX handler building the deletion target from the uploads basedir concatenated with the attacker-controlled metadata value without any realpath canonicalization or uploads-directory boundary check before calling unlink(). This makes it possible for authenticated attackers, with Subscriber-level access and above, to delete arbitrary files on the affected site's server, including wp-config.
References
security@wordfence.comhttps://github.com/AyeCode/userswp/commit/ddb17ad30ff3384cda85c5f372db30b03bd45ac8
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/userswp/tags/1.2.65/includes/class-forms.php#L1059
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/userswp/tags/1.2.65/includes/class-forms.php#L1973
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/userswp/tags/1.2.65/includes/class-forms.php#L2320
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/userswp/tags/1.2.65/includes/class-forms.php#L2323
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/userswp/tags/1.2.65/includes/class-validation.php#L190
security@wordfence.comhttps://plugins.trac.wordpress.org/changeset/3590340/userswp
security@wordfence.comhttps://www.wordfence.com/threat-intel/vulnerabilities/id/b6cf6390-480f-44e2-ae36-67e3398add33?source=cve
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "UsersWP \u2013 Front-end login form, User Registration, User Profile \u0026 Members Directory plugin for WP",
          "vendor": "stiofansisland",
          "versions": [
            {
              "lessThanOrEqual": "1.2.65",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "source": "security@wordfence.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The UsersWP plugin for WordPress is vulnerable to Arbitrary File Deletion in versions up to, and including, 1.2.65. This is due to insufficient validation of file-field values in the UsersWP_Validation::validate_fields() function (which falls through to sanitize_text_field() for fields of type \u0027file\u0027, leaving directory-traversal sequences intact) combined with the UsersWP_Forms::upload_file_remove() AJAX handler building the deletion target from the uploads basedir concatenated with the attacker-controlled metadata value without any realpath canonicalization or uploads-directory boundary check before calling unlink(). This makes it possible for authenticated attackers, with Subscriber-level access and above, to delete arbitrary files on the affected site\u0027s server, including wp-config."
    }
  ],
  "id": "CVE-2026-13492",
  "lastModified": "2026-07-10T15:43:30.330",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 8.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 5.9,
        "source": "security@wordfence.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-13492",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-07-09T19:47:26.202171Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-07-09T19:17:03.883",
  "references": [
    {
      "source": "security@wordfence.com",
      "url": "https://github.com/AyeCode/userswp/commit/ddb17ad30ff3384cda85c5f372db30b03bd45ac8"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/userswp/tags/1.2.65/includes/class-forms.php#L1059"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/userswp/tags/1.2.65/includes/class-forms.php#L1973"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/userswp/tags/1.2.65/includes/class-forms.php#L2320"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/userswp/tags/1.2.65/includes/class-forms.php#L2323"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/userswp/tags/1.2.65/includes/class-validation.php#L190"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/changeset/3590340/userswp"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/b6cf6390-480f-44e2-ae36-67e3398add33?source=cve"
    }
  ],
  "sourceIdentifier": "security@wordfence.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-22"
        }
      ],
      "source": "security@wordfence.com",
      "type": "Secondary"
    }
  ]
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.